Performance comparison of non-binary RA and QC-LDPC codes
Wenli Ni, Jing He · 2016
Repeat Accumulate (RA) codes are subclass of low-density parity-check (LDPC) codes with fast encoder structures. QC-LDPC codes are also a class of LDPC codes and easy to be implemented. There were some paper had researched that non-binary LDPC codes have better performance cover binary ones. In this paper, It constructed non-binary RA codes with linear encoding method and non-binary QC-LDPC codes with algebraic constructions method. The BER performance of RA and QC-LDPC codes over GF(q) were compared by simulation over the Additive White Gaussian Noise (AWGN) channels. The simulation results concluded when code length and code rate are same, the BER performance of this two non-binary LDPC codes are very close, but they still have a little different point.